Question 1
Question 2
Question 3
Question 4
Question 15
Question 17
Question 18
Question 19
Question 20

33a. Antennary endopod segment two with 6 setae with two of them in middle section of the endopod.

Mesocyclops americanus

33b. Antennary endopod segment two with 7 setae with three of them in the middle section of the endopod.

Mesocyclops pehpeiensis